Related by context. Frequent words. (Click for all words.) 57 harmful toxins 52 harmful chemicals 51 aerosol sprays 51 harmful contaminants 50 cleaning solvents 50 potentially harmful 50 air purifiers 47 microwaves 47 noxious chemicals 47 ionizing 47 VOCs 47 softeners 47 carcinogenic chemicals 46 toxins 46 harmful 46 toxic chemicals 46 silver ions 45 pollutants 45 toxicants 45 volatile organic compounds 45 toxic vapors 45 harmful substances 45 purifiers 44 nontoxic 44 toxic substances 44 suspected carcinogen 44 harmful effects 44 freon 44 solvents 44 EMFs 44 carbon monoxide CO 44 filters 44 degreasers 44 pet dander 44 HEPA filters 44 colorless odorless gas 43 pollutant 43 contaminants 43 brominated 43 sulfur hexafluoride 43 brominated flame retardants 43 ionized 43 airborne contaminants 43 Toxic chemicals 43 aerosol spray 43 humidifiers 43 harmful pathogens 43 unpleasant odors 43 particulates 43 potentially carcinogenic 42 substances 42 chemical vapors 42 hydrogen chloride 42 air fresheners 42 toxic byproducts 42 Triclosan 42 deodorizer 42 aggravate asthma 42 PBDE 42 gunk 42 emitted 42 trace amounts 42 electromagnetic radiation 42 chemicals 42 emit 42 mercury arsenic 42 phthalates 42 drain cleaners 41 particulate 41 airborne particles 41 #,# dioxane 41 carcinogens 41 HEPA filter 41 Freon 41 particulate matter emissions 41 air conditioners refrigerators 41 activated charcoal 41 harmful gases 41 water softeners 41 deodorizing 41 infrared rays 41 noxious fumes 41 ionization 41 ultrafine particles 41 odorless 40 dimmer switches 40 Prolonged exposure 40 allergens 40 gases emitted 40 Microwaves 40 radiation emitted 40 lead mercury cadmium 40 antibacterial soaps 40 nonflammable 40 chemically treated 40 neurotoxins 40 electromagnetic fields 40 hazardous chemicals 40 gasoline vapors 40 portable 40 carbon monoxide